Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Emergency core coolant systems
Patent
1982-04-13
1988-11-15
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Emergency core coolant systems
G21C 1518
Patent
active
047848243
ABSTRACT:
An emergency cooling device for a pressurized water nuclear reactor, through the injection of cooling liquid into the primary circuit of the reactor, comprising at least one double injection circuit equipped with two pumps arranged outside the safety enclosure of the reactor and a set of accumulators containing a certain amount of cooling liquid under pressure arranged inside the enclosure. The accumulators are distributed in a first set at a pressure P1 less than the pressure of the primary circuit of the reactor and a second set at the pressure P2 less than the pressure P1. The injection of cooling liquid through one and other set is caused by the automatic opening of valves when the pressure of the primary circuit drops below P1 and below P2, respectively, in the event of a leakage in this circuit. The invention is useful for pressurized water nuclear reactors having any number of primary loops.
REFERENCES:
patent: 3981770 (1976-09-01), Middleton
patent: 4046626 (1977-09-01), Winkler et al.
patent: 4050983 (1977-09-01), Kleimola
patent: 4510118 (1985-04-01), Esayan et al.
Implications of Wash-1400-"The Reactor Safety Study." ANS, 11/76, pp. 331-332.
Bonhomme Nicolas
Gandrille Jean-Luc
Framatome & Cie.
Kyle Deborah L.
Wendtland Richard W.
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